High CPU Usage on Ubuntu By update-apt-xapi Process

update-apt-xapian-index is truncated and shown as update-apt-xapi in top tool. This process is responsible for maintaining an index of packages to speed up search on Synaptic and is scheduled as a cron job (/etc/cron.weekly).

This is the cron job, triggering the process:#!/bin/sh
CMD=/usr/sbin/update-apt-xapian-indexIONICE=/usr/bin/ionice